A submarine moving in a stratified fluid with sharp interfaces is considered. The velocity field and the waves created by a moving submarine on a sea surface are simulated with the computational fluid dynamics numerical method. The wakes in various patterns with different parameters are discussed and illustrated in both geometries and synthetic aperture radar (SAR) images. The hydrodynamic fields are utilized to obtain the electromagnetic (EM) scattering signatures of the internal waves. In order to simulate SAR images of the generated wakes, the spatial distributed EM field is necessary. For this purpose, the semi-deterministic facet scattering model is employed. The SAR images in different look directions demonstrate that the micro-internal waves on sea surface can be sensed from its Bragg component moving in the radar look direction by SAR.

考虑了在具有尖锐界面的分层流体中移动的潜艇。用计算流体动力学数值方法模拟了运动的潜艇在海面上产生的速度场和波。在几何形状和合成孔径雷达（SAR）图像中都讨论并说明了具有不同参数的各种模式的尾波。利用流体动力场来获得内波的电磁（EM）散射特征。为了模拟所产生的尾流的SAR图像，空间分布的电磁场是必要的。为此，采用了半确定性面散射模型。不同视线方向的SAR图像表明，SAR可以从沿雷达视线方向移动的布拉格分量感测到海面的微内波。